Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75
The AirTAC Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75 is a genuine double-acting ISO 15552 profile cylinder with a Ø100mm bore, 75mm stroke and a built-in spring-applied, air-released mechanical lock in the front cover — it holds the load at the extended (rod-out) stroke end even when air is lost.
- BoreØ100 mm
- Stroke75 mm
- Port sizeG1/2
- Lock positionFront cover
- Rod threadM20×1.5
- UnlockAir + manual
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75
The AirTAC SAILF100X75 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released mechanical lock housed in the front cover. This lock engages when the piston reaches the extended stroke end, securely holding the rod out without requiring live pressure. In the 100 mm bore class, it delivers 5497 N of push force at 0.7 MPa, making it suitable for heavy load manipulation.
The lock releases automatically via air supply or manually via a lever, but pneumatic routing demands care: avoid fast-exhaust valves and use an independent-exhaust solenoid valve, as back-pressure on the locker side can unintentionally release the lock. Additionally, the variable air cushion at the front locker end is shorter (24 mm) than the free end cushion (36 mm). Standard carbon steel rod construction and PT tapered ports are utilized.
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75 Technical Specifications
| Model | Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75 |
|---|---|
| Series | SAIL ISO 15552 cylinder with lock |
| Bore size | Ø100 mm |
| Stroke | 75 mm |
| Acting type | Double acting, with lock |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released (front cover) |
|---|---|
| Unlock | Automatic (air) & manual |
| Operating pressure | 0.15 – 1.0 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable (36 mm free end / 24 mm lock end) |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAIL datasheet (ISO 15552). Confirm against the product label before installation. Port options: PT / G.
How the Lock Holds
The lock is spring-applied and air-released: a spring drives a lock pin into the rod when the release air is removed, so the load is held at the extended (rod-out) stroke end without live pressure. Supply air to the release port to unlock automatically, or use the manual release lever.
The lock engages only when the piston reaches the stroke terminal on the front-cover side — it is a static end-of-stroke hold, not a mid-stroke clamp and not a moving-rod brake. For locking at any position along the stroke, choose a BSAI clamp-lock instead.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Cylinder thrust is separate from the lock's holding capability. Actual usable force is lower than theoretical due to friction and back-pressure — size with a margin.
Where the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75 Is Used
Vertical Lift Holding
Secures a lifted load in the extended position during air pressure loss, preventing sudden drops on vertical actuators.
Safety Gate Lock
Keeps heavy machine safety gates firmly open and locked at the extended stroke end until the release air is actively supplied.
End-of-Stroke Clamp
Maintains a solid clamping force on a part at the forward stroke end without consuming continuous pneumatic energy.
Is the Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75 the Right Lock Cylinder?
Select this 100 mm bore cylinder when an application requires substantial end-of-stroke holding force, specifically to maintain a rod-out position during a power loss. If your system requires less force, the 80 mm bore provides 3518 N at 0.7 MPa; for heavier demands, the 125 mm bore yields 8590 N. Choose this SAILF variant when the extended position must be secured; if the retracted position needs holding, select a SAILB model instead.
Because the lock is a static holding device that engages only after the cylinder stops at the stroke terminal, it cannot clamp a load at an arbitrary mid-stroke point—use a BSAI clamp-lock cylinder for that functionality. For safety-critical suspended loads, always add an independent mechanical safety measure. Replacement specifications require a 100 mm bore, 75 mm stroke, front locker position, 1/2 PT port, and no sensor magnet.
Quick checklist
- ✓ Hold needed at the extended (rod-out) end?
- ✓ Or lock anywhere → use BSAI
- ✓ Independent-exhaust valve fitted
- ✓ Port/thread type (PT/G)
- ✓ Extra safety measure for people
Airtac SAILF Front Locking Pneumatic Cylinder SAILF100X75 FAQ
At 0.7 MPa operating pressure, the 100 mm bore provides a push force of 5497 N and a pull force of 3681 N. The maximum push force is 7068 N at 0.9 MPa.
The lock is spring-applied and air-released, engaging only when the rod reaches the extended stroke end. It holds statically after stopping and is released by supplying air to the release port or using the manual lever; it does not brake a moving rod.
Related AirTAC Lock & Standard Cylinders
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